Agent skill

Kiln UI

by Kiln-AI in Kiln-AI/Kiln

Build or change anything under app/webui with Kiln's house controls and styles only.

Custom licenceAuto-check: notesAI & LLM Engineering

Install Kiln UI

skills CLI
$ npx skills add Kiln-AI/Kiln --skill kiln-ui -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Kiln-AI/Kiln kiln-ui --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Kiln-AI/Kiln.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/kiln-ui .claude/skills/kiln-ui && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
kiln-ui
GitHub stars
5.2k
Token cost
~2.9k tokens
SKILL.md length
1,442 words
Files
3
Skills in repo
14
Repo updated
First seen
Licence
Custom licence

At a glance

Build or change anything under app/webui with Kiln's house controls and styles only.

  • Works in 8 steps: Read, every time (5 minutes) → The house controls and when each is the… → Component plan, before code (required) → …
  • Tasks that involve Frontend development
  • SKILL.md covers 0. Read, every time (5 minutes), 1. The house controls and when…, 2. Component plan, before code… and 3. Build rules, plus 4 more sections
  • Runs Shell scripts from its folder; calls bash

What it does

Kiln UI is an agent skill from Kiln-AI/Kiln. Build or change anything under app/webui with Kiln's house controls and styles only. Invoke before touching any .svelte file, and before writing a task that names a screen, dialog, card, form, button, header or progress state. Produces a component plan, a sibling-screen comparison, a gate run and a handback a reviewer can verify without looking at pixels.

Its SKILL.md is about 2.9k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `ui_gate.sh`).

It sits in AI & LLM Engineering, covering Frontend development. It works with Svelte. The repository describes itself as: Build, Evaluate, and Optimize AI Systems. Includes evals, RAG, agents, fine-tuning, synthetic data generation, dataset management, MCP, and more.

When your agent uses it

  • Tasks that involve Frontend development

Example prompts

  • “/kiln-ui”

Requirements

  • A Bash shell
  • Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Read, every time (5 minutes)
  2. The house controls and when each is the answer
  3. Component plan, before code (required)
  4. Build rules
  5. Shared controls are a separate change
  6. Gate, on the diff (required)
  7. Review lens: house control or justify
  8. Handback contract (the reviewer signs off on these, not on pixels)

What it can do on your machine

Read from SKILL.md and the folder at commit 8ac9075. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Glob
    • Bash

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Ships script files (Shell), which the agent can run.

    Shell commands in SKILL.md call:

    • bash

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Kiln UI loads about 2.9k tokens when it runs. Until then it costs about 92 tokens; SKILL.md has 1,442 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~92
When it runs · the whole SKILL.md, loaded when a task matches
~2.9k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Grep, Glob, Bash

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,442 words (~2,949 tokens).

“Kiln screens are built from a small set of shared controls and DaisyUI classes. A screen assembled from Tailwind copied off a house control looks right in a screenshot and wrong next to the rest of the app, and the…”

— opening of SKILL.md by Kiln-AI, Custom licence
name
kiln-ui
allowed-tools
Read, Grep, Glob, Bash

Read the full SKILL.md on GitHub

Files

SKILL.md and 2 other files in .agents/skills/kiln-ui of Kiln-AI/Kiln.

  • SKILL.md
  • ui_gate.sh
  • ui_gate_allow.txt

Open the folder on GitHubat commit 8ac9075

Compare with similar skills

Kiln UI next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Kiln UI compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Kiln UI this skillKiln-AI/Kiln5.2k—~2.9kAutomated safety check: NotesCustom licence
GSAP in Vue, Nuxt and Sveltegreensock/gsap-skills16k3 repos~2.6kAutomated safety check: PassMIT
Svelte Core Best Practicesrilldata/rill2.9k4 repos~1.8kAutomated safety check: PassApache-2.0
Uncodixfypdsuwwz/chatgpt-vue3-light-mvp5792 repos~3kAutomated safety check: PassMIT
Design StyleCastor6/tactus3761 repos~2.1kAutomated safety check: PassApache-2.0
Windmill Svelte Frontend Patternswindmill-labs/windmill18k—~1.5kAutomated safety check: PassCustom licence

Similar skills

  • GSAP in Vue, Nuxt and Svelte

    greensock/gsap-skills

    Shows how to use GSAP in Vue, Nuxt, Svelte and other lifecycle-based frameworks: create after mount, scope selectors to the component, and revert on unmount.

    16k GitHub starsUsed in 3 repos~2.6k tokens
    Frontend & DesignAuto-check passed
  • Rules for writing idiomatic Svelte 5 code: when to reach for runes like state, derived and effect, and how to handle props, attachments and bindings.

    2.9k GitHub starsUsed in 4 repos~1.8k tokens
    Frontend & DesignAuto-check passed
  • Uncodixfy

    pdsuwwz/chatgpt-vue3-light-mvp

    Prevents generic AI/Codex UI patterns when generating frontend code.

    579 GitHub starsUsed in 2 repos~3k tokens
    Frontend & DesignAuto-check passed
  • Design Style

    Castor6/tactus

    A skill your agent uses whenever the user asks to build, create, design, develop, improve, or style any frontend interface or visual element.

    376 GitHub starsUsed in 1 repo~2.1k tokens
    Frontend & DesignAuto-check passed
  • Windmill Svelte Frontend Patterns

    windmill-labs/windmill

    Enforces Windmill-specific Svelte habits: reuse one of 1,600+ existing components, follow the brand guidelines by section, and never fall back to raw HTML elements.

    18k GitHub stars~1.5k tokensUpdated today
    Frontend & DesignAuto-check passed
  • Frontend UI Foundry

    jiushiwon/wg-skills

    A skill your agent uses when generating UI for a specific scenario (mobile/PC/官网/管理端/营销页/文档/金融/原生/3D), when refactoring an existing HTML/Vue/React project to a unified design system, when extracting…

    114 GitHub stars~1.4k tokensUpdated 4 days ago
    Frontend & DesignAuto-check passed

More from Kiln-AI/Kiln

All 14 skills in this repo
  • Check Kiln's model list for deprecated or sunset models across all providers.

    5.2k GitHub stars~2.5k tokensUpdated yesterday
    Auto-check: notes
  • Check Kiln's fine-tunable model list for deprecated or unsupported base models.

    5.2k GitHub stars~1.9k tokensUpdated yesterday
    Auto-check: notes
  • Release Digest

    Kiln-AI/Kiln

    Post a "what's changed since the last release" recap to the release Slack channel for final QA.

    5.2k GitHub stars~2.7k tokensUpdated yesterday
    Auto-check passed
  • Kiln Conventions

    Kiln-AI/Kiln

    Kiln's code conventions and per-area gotchas, plus a diff gate that enforces the mechanical ones.

    5.2k GitHub stars~1.7k tokensUpdated yesterday
    Auto-check: notes
  • Playwright

    Kiln-AI/Kiln

    Look at Kiln's UI in a real browser, and run its end-to-end tests.

    5.2k GitHub stars~1.3k tokensUpdated yesterday
    Auto-check passed
  • Open PR

    Kiln-AI/Kiln

    Open a pull request on the Kiln repo for a human to complete.

    5.2k GitHub stars~6.1k tokensUpdated yesterday
    Auto-check passed

Works with

Questions about Kiln UI

What does Kiln UI do?

Build or change anything under app/webui with Kiln's house controls and styles only. Kiln UI is an agent skill from Kiln-AI/Kiln. Build or change anything under app/webui with Kiln's house controls and styles only.

When should I use Kiln UI?

Kiln UI fits situations like: tasks that involve Frontend development.

How do I install Kiln UI in Claude Code?

Run `npx skills add Kiln-AI/Kiln --skill kiln-ui -a claude-code`. Or copy the skill folder (.agents/skills/kiln-ui in Kiln-AI/Kiln) into .claude/skills/kiln-ui in your project. Claude Code loads it when a task matches its description.

How do I install Kiln UI in Codex?

Run `npx skills add Kiln-AI/Kiln --skill kiln-ui -a codex`. Or copy the skill folder (.agents/skills/kiln-ui in Kiln-AI/Kiln) into .agents/skills/kiln-ui in your project. Codex loads it when a task matches its description.

Can I use Kiln UI in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Kiln-AI/Kiln --skill kiln-ui -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/kiln-ui, .gemini/skills/kiln-ui, .github/skills/kiln-ui and .opencode/skills/kiln-ui in your project.

What does Kiln UI need to run?

Going by SKILL.md and its folder, Kiln UI needs a shell for the scripts in its folder and the command-line tools its instructions call (bash). Our summary lists: A Bash shell. Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash.

Does Kiln UI access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Kiln UI safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Kiln UI use?

Kiln UI has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Kiln UI use?

About 2.9k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Kiln UI?

Skills that share tags, products or a category with Kiln UI: GSAP in Vue, Nuxt and Svelte (greensock/gsap-skills, 16k stars), Svelte Core Best Practices (rilldata/rill, 2.9k stars), Uncodixfy (pdsuwwz/chatgpt-vue3-light-mvp, 579 stars) and Design Style (Castor6/tactus, 376 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Kiln UI?

Kiln-AI (a GitHub organization) maintains it in Kiln-AI/Kiln, which has 5,181 GitHub stars. The repository holds 14 skills in this directory. The repository was last updated on October 9, 2026.

Source: Kiln-AI/Kiln on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.